Underground Coal Seam Injection Pump Technology Criteria
In order to ensure the safety, reliability, efficiency and economy of various underground injection pump operations, it is essential to select the appropriate underground injection pump the technology. This article provides underground coal seam injection pump technology selection criteria for a variety of geological, geological and hydrological conditions.
Geological Conditions
The geological conditions of underground coal seam injection pumping technologies will depend on the type of coal host formation. In coal seams with generally low permeability and/or ductility and stiffness, an injection pressure that is too high may lead to hydraulic fracturing of the coal seam and to the potential for pooling of the injection liquid within the subsurface environment.
For a coal seam with generally high permeability and/or ductility and stiffness, an injection pressure that is too low may result in a lack of sufficient injection rates or insufficient injection volumes. In both instances, it is important to evaluate the flow characteristics of the coal seam prior to determining the correct injection pressure and injection technology.
Hydrogeology
The hydrogeology of the underground coal seam injection pump technology will also vary, depending on the target coal seam. In coal seams with complex hydrogeology, such as those encountered in coal seams with multiple fracture zones, it may be necessary to consider different injection technologies, such as multistage injection pumps, pulse injection pumps, and downhole injection pumps, in order to achieve sufficient injection rates and injection volumes.
In general, it is important that the injection technology selected is able to effectively and efficiently penetrate the hydrogeology of the target coal seam. In addition, for some applications, the injection technology must be able to reduce or limit the flow of injected fluid such that only the target coal seam is impacted by the injection operation.
Safety and Reliability
The safety and reliability of underground coal seam injection pump technology is paramount. Careful consideration must be given to the safety features of the injection technology, as well as any potential contamination of the subsurface environment.
In addition, the injection technology should be designed such that it is reliable and able to respond to various operational conditions. This may involve selecting an injection technology that is able to monitor injection pressures and injection volumes, as well as control the injection rate and duration.
Economy
The economy of the underground coal seam injection pump technology is also important. The injection technology should be economical in terms of operational costs, as well as environmental costs associated with the injection operation. In addition, the injection technology should be efficient in terms of time and energy needed to complete the injection operation.
Conclusion
In conclusion, it is important to select the appropriate underground coal seam injection pump technology for a variety of geological, geological and hydrological conditions. Careful consideration should be given to the safety and reliability of the selected injection technology, as well as its economy in terms of operational costs and environmental impact. In addition, the injection technology should be able to effectively penetrate the hydrogeology of the target coal seam to achieve desired injection rates and volumes.
